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EU
satnav project edges towards launch pad
by Staff Writers
Brussels (AFP) Nov 27, 2007
EU nations are poised to break months of deadlock over their Galileo
satellite navigation programme on Thursday, although they still face
the sticky question of carving up the project's coveted contracts.
Budget ministers and EU lawmakers paved the way for an agreement on
Galileo's future on Friday by striking a deal on how to fund the project,
removing a major obstacle.
They
agreed to fill a 2.4-billion-euro (3.6-billion-dollar) hole in Galileo's
financing entirely with money from the EU's 2007 and 2008 budgets.
Of
that figure, two-thirds will come from unspent farm aid budgeted this
year and the rest will be drawn from funds earmarked for research next
year.
After
months of bitter wrangling between member states, a senior official
with the European Union's Portuguese presidency said "a big step
forward had been made" with the funding agreement.
Work
on Galileo, supposed to be a showcase for Europe's technical prowess,
stalled earlier this year as cost over-runs piled up, the private contractors
bickered and member states lobbied for their own industrial interests.
As
the original public-private partnership involving a consortium of eight
European companies fell apart, the European Commission recommended that
the project should be relaunched using public money entirely.
In
a sector as specialised and concentrated as the space industry, the
same companies will be in the running for new contracts, although some
smaller newcomers are also likely seek a share of the work.
The
European Commission has divided the work into six segments consisting
of the satellites, launchers, computer programmes, ground stations,
control stations and the system's operation.
Companies
will not be able to have more than two of the contracts and 40 percent
of the work will have to be sub-contracted out to ensure that smaller
companies also get to participate in the project.
Efforts
to revive the Galileo project have stalled for months amid German demands
for a "fair return" on investments granted to sites in Germany,
which wanted the programme to be financed only by countries whose companies
participated.
Although
Germany was the only country to vote against Friday's agreement, paradoxically
Berlin said afterwards it was satisfied with guarantees from the Commission
on the participation of German companies.
In
the current state of things, Germany will still play the lead role through
Astrium, a unit of European aerospace group EADS, in the construction
of the 26 satellites that are due to follow an initial four already
planned in an initial phase.
Germany
will also get one of the two control stations, with the other going
to Italy.
However,
one diplomat said that some countries wanted the satellite construction
to be divided among two groups to ensure that other companies also get
to participate.
Spain,
which abstained from voting on Friday's agreement, is also demanding
a control centre for such services as signals for ship safety and it
remains to be seen if that will sow discord in Thursday's talks.
Indonesia's
peatlands: a little-known culprit in climate change

by Staff Writers
Pangkalan Kerinci, Indonesia (AFP) Nov 23, 2007
Viewed from the air, the vast, cool forests of the Kampar peninsula
on Indonesia's Sumatra island are a world away from China's belching
factories or America's clogged freeways.
But appearances can be deceptive.
Most
of this 400,000-hectare (988,000-acre) peninsula is peatland: dense,
swampy forest that, when healthy, efficiently soaks up greenhouse gases
from the world's worst polluters.
When
drained, cleared or burned, however, this wilderness transforms into
one of the worst climate vandals, releasing six to nine times the amount
of carbon stored in regular equatorial forests.
Swamps
have not traditionally held the same ecological sex appeal as, say,
doe-eyed wildlife. But as nations prepare for a major global conference
on climate change in Indonesia in December, the world's focus is changing.
The
December 3-14 UN summit on the resort island of Bali will see international
delegates thrash out a framework for negotiations on a global regime
to combat climate change when the current phase of the Kyoto Protocol
ends in 2012.
A
2007 figure from the Indonesia-based Centre for International Forestry
Research puts deforestation at around 25 percent of all man-made carbon
dioxide emissions.
Avoiding
emissions from deforestation has so far been left out of the Kyoto Protocol
on climate change, which focuses instead on reducing emissions from
sources such as industry and transport.
Widespread
deforestation has made Indonesia the third largest emitter of carbon
in the world, the contribution coming most dramatically in the form
of near-annual forest fires on islands such as Sumatra and Borneo.
The
fires, which send choking smoke as far as Singapore and Malaysia, are
for the most part caused by the clearing of peatlands.
And
the destruction of Indonesia's peatlands accounts for four percent of
total global greenhouse gas emissions, according to Greenpeace.
--
'If the peat is dry, it's impossible to make it wet' --
Peatlands
are not just a threat when they are burning. A flight over Kampar reveals
scars of cleared land gouged from the forest, linked with canals built
to transport legal and illegal logs to inland mills.
Much
of the carbon released from peatland swamps is the result of draining
so the land, or the logs, can be used, says Jonotoro, a peatlands expert
at the forestry ministry and an independent consultant.
As
the water level drops, more and more of the stock of carbon is released
into the atmosphere.
In
clear-cut areas, the temperature can rise dramatically in the dry months
between July and September to around 70 degrees Celsius (158 degrees
Fahrenheit), up from a usual cool average of 28 degrees.
"If
the peat is already dry it's impossible to make it wet," Jonotoro
said.
Peatland
is made up of a waterlogged store of semi-decomposed vegetation, which
squelches underfoot. The deeper the peatland -- it can stretch to a
depth of more than 15 metres (almost 50 feet) -- the more carbon it
holds.
If
set on fire, dry peatland can burn for weeks -- the fire can be extinguished
on the surface, only to continue burning underground and reappear the
next day.
In
Indonesia, the main driver for the destruction of peatlands is the world's
appetite for wood, pulp and palm oil.
The
best place for plantations is dry land, but as the rush for Indonesia's
last wildernesses continues to turn much of the countryside into a landscape
of industrial uniformity, any land will do.
--
Happy hunting grounds for illegal loggers --
At
the western end of Kampar sits Pangkalan Kerinci, home of a massive
pulp and paper mill belonging to Asia Pacific Resources International
(April).
The
mill -- and the manicured company town that surrounds it -- is the nerve
centre of a sprawling acacia plantation, much of which is on peatland.
April
is keen to boost its environmental credentials, running a tagging system
to prevent illegal logging. Two of its security guards were killed in
a 2002 confrontation with illegal loggers.
Still,
seven of April's partner companies are under investigation for illegally
cutting forests.
A
cornerstone of April's green efforts is water management in its peatland
plantations. At its nearby Pelalawan plantation, a 1,100-kilometre (684-mile)
network of canals regulates water levels over 100,000 hectares of planted
forest.
The
goal of the management is to reduce emissions from the peatland beneath,
explained Jouko Virta, head of April's global fibre supply. By keeping
the water table at the highest level tolerated by the plantation trees,
Virta says carbon dioxide emissions from the peatland can be reduced
by 80 percent.
The
company is now pursuing an audacious plan to push into Kampar, converting
more than 100,000 hectares around the peninsula's perimeter into more
plantations, while leaving the centre untouched.
April
says the move will reduce carbon emissions, since much of this perimeter
is already heavily degraded, either by illegal loggers or old concessionaires.
By
installing their own plantations and managing them responsibly, they
believe they will keep illegal loggers from penetrating further inland.
"National
parks are the happiest hunting grounds for illegal loggers, and the
only way you can protect them is by building barriers," Virta told
AFP.
WWF
reserved judgement on April's plan, saying they needed to see evidence
that the Kampar ring is really as degraded as the company says, and
that emissions can actually be reined in as much as they say.
"I
think we need to see the scientific analysis," said Nazir Foead,
WWF's policy and corporate engagement director, adding that the organisation
was aiming to complete its own analysis by December's Bali meeting.
Consultant
Jonotoro is unconvinced by April's optimism and said acacia plantations
will never be a success on Kampar's nutrient-poor peatland.
"The
main point of why they chose this area is because they need natural
timber, big hardwood timber" for their mills, he said, referring
to their legal practice of felling and processing the trees from their
concessions before planting
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NASA
Scientist Confirms Light Show On Venus

Venus
is a hellish place of high temperatures and crushing air pressure. The
European Space Agency's Venus Express mission adds into this mix the
first confirmation that the Venusian atmosphere generates its own lightning.
The discovery is part of the Venus Express science findings that appear
in a special section of the Nov. 29 issue of the journal Nature.
"In addition to all the pressure and heat, we can confirm there
is lightning on Venus -- maybe even more activity than there is here
on Earth," said Christopher Russell, a NASA-sponsored scientist
on Venus Express from the University of California, Los Angeles, and
lead author of one of the Nature papers. "Not a very good place
to vacation, that is for sure."
The
discovery puts Venus in elite planetary company. Scientists currently
know of only three other planetary bodies in the entire universe that
generate lightning -- Earth, Jupiter and Saturn. Lightning on Venus
-- as well as on any other planet -- is an important discovery because
the electrical discharges drive the chemistry of an atmosphere by breaking
molecules into fragments that can then join with other fragments in
unexpected ways. The lightning on Venus is unique from that found on
Earth, Jupiter and Saturn in that it is the only lightning known that
is not associated with water clouds. Instead, on Venus, the lightning
is associated with clouds of sulfuric acid.
Any
future missions to the second rock from the sun may have to take into
account the electrical activity in the Venusian atmosphere.
The
confirming measurements of the electrical discharges were made with
data obtained by the Venus Express magnetometer instrument provided
by the Space Research Institute in Graz, Austria. The measurements were
taken once a day for two minutes, during a period when the spacecraft
was closest to Venus. A Venusian day is about 117 days long.
With
its primary mission completed, Venus Express will now embark upon its
extended mission to watch Earth's nearest planetary neighbor for two
more Venusian days. Among other things, it will look for the telltale
infrared radiation from lava flows. In 2010, when a Japanese mission,
Venus Climate Orbiter, also called Planet-C, arrives at Venus, scientists
will be able to compare results from the two spacecraft.
More
than 250 scientists and engineers across Europe are involved in the
Venus Express mission, supported by their institutes and national space
agencies. The mission also sees the contribution of scientists from
Russia and Japan, as well as from NASA, which sponsors 15 American Venus
Express scientists and provides support to the radio science investigation
via its Deep Space Network antennas.
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Venus
inferno due to 'runaway greenhouse effect', say scientists

Once
styled as Earth's twin, Venus was transformed from a haven for water
to a fiery hell by an unstoppable greenhouse effect, according to an
investigation by the first space probe to visit our closest neighbour
in more than a decade.
Like peas in a cosmic pod, the second and third rocks from the Sun came
into being 4.5 billion years ago with nearly the same radius, mass,
density and chemical composition.
But
only one, Earth, developed an atmosphere conducive to life. The other,
named with unwitting irony after the Roman goddess of love, is an inferno
of carbon dioxide (CO2), its bone-dry surface hot enough to melt lead
or zinc.
The
European Space Agency's (ESA) Venus Express, orbiting its prey since
April 2006, seeks to explain this astonishing divergence.
Preliminary
data from the probe reveal a Venus that is more Earth-like than once
thought -- but not in ways that are reassuring.
"The
basic physics of the greenhouse effect are the same on Venus as on Earth,"
said Venus Express scientist David Grinspoon. "Perhaps the same
fate will await the water on Earth."
At
first blush, the two worlds, 42 million kilometres (26 million miles)
apart at their closest points, could hardly be more different.
Earth's
temperature range has remained largely stable and its atmosphere has
maintained a balance of gases -- and this, with the precious water covering
two-thirds of its surface, has allowed riotous biodiversity to flourish.
Venus'
atmosphere, though, overwhelming comprises suffocating CO2 and a permanent
blanket of clouds laced with sulphuric acid. Oxygen is nowhere to be
found, nor is any water except in atmospheric traces.
Its
surface hovers at 457 degrees Celsius (855 degrees Fahrenheit) and has
a pressure equivalent, on Earth, to being a kilometer (3,250 feet) under
the sea.
But
this was not always so, says Hakan Svedhem, an ESA scientist and lead
author of one of eight studies published on Wednesday in the British
journal Nature.
Venus,
he believes, was partially covered with water before it became doomed
by global warming.
"Probably
because Venus was closer to the Sun, the atmosphere was a little bit
warmer and you got more water very high up," he told AFP.
As
water vapour is a greenhouse gas, this further trapped solar heat, causing
the planet to heat up even more. So more surface water evaporated, and
eventually dissipated into space.
It
was a "positive feedback" -- a vicious circle of self-reinforcing
warming which slowly dessicated the planet.
"Eventually
the oceans begin to boil," said Grinspoon. "We believe this
is what happened on Venus."
Even
today, Earth and Venus have roughly the same amount of CO2. But whereas
most of Earth's store remains locked up in the soil, rocks and oceans,
on Venus the extreme heat pushed the gas into the air.
"You
wound up with what we call a runaway greenhouse effect," Svedhem
told AFP in an interview. "(It) reminds us of pressing problems
caused by similar physics on Earth."
Venus
Express, the first dedicated mission since the US Magellan Orbiter mapped
the planet's surface in the early 1990s, is equipped with an arsenal
of sensors to peer through the dense clouds across the entire light
spectrum.
One
surprise already turned up by the 600-kilo (1,320-pound) probe is a
30-40 C (55-70 F) variation between daytime and nighttime temperatures
at an altitude of 60 kilometres (40 miles).
At
this height, violent winds three times stronger than hurricanes on Earth
should even out differences, or so it had been thought.
There
are many questions yet to be answered during the mission, which is scheduled
to last through 2013.
One
is whether there is lightning on Venus. Given the kind of clouds covering
the planet, there simply should not be any, Andrew Ingersoll, a professor
at Caltech University in Pasadena, California, said in a commentary,
also published in Nature.
But
Venus Express has detected "whistlers," low-frequency electromagnetic
waves that last a fraction of a second and are normally a sure sign
of electrical discharges.
"We
consider this to be the first definitive evidence of abundant lightning
on Venus," said Grinspoon. A powerful source of energy, lightning
changes the chemistry of any planet with a dynamic atmosphere, such
as Earth or Venus, he added.
Another
enigma: sometime within the last 700 to 900 million years, the planet
seems to have lost its skin, its topography resculpted by some giant
force.
"Venus
has quite recently completely changed its surface," said Svedhem.
"Some event completely changed everything -- this is a strange
process we do not completely understand."
----------------------------------------------------------------------------
New
Isotope Molecule May Add To Venus' Greenhouse Effect

Planetary
scientists on both sides of the Atlantic have tracked down a rare molecule
in the atmospheres of both Mars and Venus. The molecule, an exotic form
of carbon dioxide, could affect the way the greenhouse mechanism works
on Venus. The discovery is being announced today at the annual meeting
of the American Astronomical Society's Division of Planetary Sciences
in Orlando, Florida. Its presence could affect the way the greenhouse
mechanism works on Venus. The mystery began back in April 2006, soon
after ESA's Venus Express arrived at the second planet in the Solar
System.
A European team including members from France, Belgium and Russia lead
by Jean-Loup Bertaux, Service d'Aeronomie du CNRS, France and Ann-Carine
Vandaele, Institut d'Aeronomie Spatiale de Belgique, were using their
Infrared Atmospheric Spectrometer (SOIR) instrument to measure solar
occultations.
To
do this, the instrument watches the Sun set behind Venus, allowing the
scientists to study the way specific wavelengths of light are absorbed
by the planet's atmosphere. These wavelengths and the level of absorption
then give away the identity and amount of gases in the atmosphere.
The
team saw an unidentified signature at 3.3 micrometres in the mid-infrared
region of the spectrum. "It was conspicuous and systematic, increasing
with depth in the atmosphere during the occultation, so we knew it was
real," says Bertaux.
The
team kept their discovery confidential as they attempted to identify
the molecule responsible. They thought at first that it must be an organic
molecule. These molecules contain carbon and hydrogen. However, none
of the known organic molecules fitted well with the observations.
Then,
in December 2006, Mike Mumma of NASA's Goddard Space Flight Center,
Maryland, enquired whether the SOIR team was seeing anything special
on Venus at 3.3 microns. He had discovered an unidentified spectral
signature at that wavelength using telescopes on Hawaii pointing at
Mars. The two teams compared the absorption signatures: they were identical.
This
was a big clue. Both the atmospheres of Mars and Venus are composed
of 95% carbon dioxide, although Venus's atmosphere is much thicker than
the one at Mars. The American team suggested that the signature could
be coming from an isotope of carbon dioxide, where one oxygen atom is
'normal', with eight protons and eight neutrons, while the other has
eight protons and ten neutrons. Such an isotope makes up about 1% of
carbon dioxide on Earth, the rest contains two normal oxygen atoms.
However,
no one had previously seen the molecule absorb at 3.3 micrometres. An
investigation by three independent groups, one led by Mumma in America,
Sergei Tashkun and Valery Perevalov at Tomsk State University, Russia,
and Richard Dahoo at Service d'Aeronomie du CNRS, France, all came to
the same conclusion. The signature could be caused by a rare transition
only possible in the isotope.
The
different weights of the oxygen atoms allow the molecule to alter its
vibration in two ways simultaneously, whereas normal molecules can only
change one state at a time.
This
rare transition allows it to absorb even more energy and so contribute
even more to the greenhouse effect on Venus. On Earth, however, there
is 250 000 times less carbon dioxide so its additional contribution
to our greenhouse effect will be small.
---------------------------------------------------------------------------
New
Ideas in Science
Dr. Thomas Gold
Dept. of Astronomy
Cornell University, Ithaca NY 14853
Abstract - The pace of scientific work continues to accelerate, but
the question is whether the pace of *discovery* will continue to accelerate.
If we were driving in the wrong direction - in the direction where no
new ideas can be accepted - then even if scientific work goes on, the
progress would be stifled. This is not to suggest that we are in quite
such a disastrous position, but on the other hand, all is not well.
New ideas in science are not always right just because they are new.
Nor are the old ideas always wrong just because they are old. A critical
attitude is clearly required of every scientist. But what is require
is to be equally critical to the old ideas as to the new. Whenever the
established ideas are accepted uncritically, but conflicting new evidence
is brushed aside and not reported because it does not fit, then that
particular science is in deep trouble - and it has happened quite often
in the historical past. If we look over the history of science, there
are very long periods when the uncritical acceptance of the established
ideas was a real hindrance to the pursuit of the new. Our period is
not going to be all that different in that respect, I regret to say.
I
want to discuss this danger and the various tendencies that seem to
me to create it, or augment it. I can draw on personal experiences in
my 40 years of work on various branches of science and also on many
of the great controversies that have occurred in that same period.
I will start very naively by a definition of what a scientist is. He
is a person who will judge a matter purely by its scientific merits.
His judgment will be unaffected by the evaluation that he makes or the
judgment that others would make. He will be unaffected by the historical
evaluation of the subject. His judgment will depend only on the evidence
as it stands at the present time. The way in which this came about is
irrelevant for the scientific judgment; it is what we now know today
that should determine his judgment. His judgment is unaffected by the
perception of how it will received by his peers and unaffected by how
it will influence his standing, his financial position, his promotion
- any of these personal matters. If the evidence appears to him to allow
several different interpretations at that time, he will carry each on
of those in his mind, and as new evidence comes along, he will submit
each new item of evidence to each of the possible interpretations, until
a definitive decision can be made. That is my naive definition of a
scientist.
I may have reduced the number of those whom you think of as scientists
very considerably by that definition. In fact, I may have reduced it
to a null class. But, of course, we have to be realistic and realize
that people have certain motivations. The motivation of curiosity is
an important one, and I hope it is a very important once in most scientists'
minds. But I doubt that there are many scientists to whom the motivation
of curiosity about nature would suffice to go through a lifetime of
hard struggle to uncover new truths, if they had no other motivation
that would drive them along that same path. If there was no question
about appealing to one's peers to be acknowledged, to have a reasonably
comfortable existence, and so on, if none of this came into the picture,
I doubt that many people would choose a life of science.
When the other motivations come into the act, of course the judgment
becomes cloudy, becomes different from the ideal one, from the scientific
viewpoint, and that is where the main problem lies. What are the motivations?
If there are motivations that vary from individual to individual, it
would not matter all that much because it would not drive the scientific
community as much to some common, and possibly bad, judgment. But if
there are motivations that many share, then of course that is another
matter; then it may drive the whole scientific community in the field
in the wrong direction. So, we must think: what are the communal judgment-clouding
motivations? What is the effect of the sociological setting? Is our
present-day organization of scientific work favorable or unfavorable
in this respect? Are things getting worse, or are they getting better?
That is the kind of thing we would like to know.
The pace of scientific work continues to accelerate, but the question
is whether the pace of discovery will continue to accelerate. If we
were driving in the wrong direction - in the direction where no new
ideas can be accepted - then even if scientific work goes on, the progress
would be stifled. This is not to suggest that we are in quite such a
disastrous position, but on the other hand, I am not going to suggest
that all is well.
What are the many factors that many people might share that go against
the acceptance of scientifically valid new ideas? One obvious factor
that has always been with us is the unwillingness to learn new things.
Too many people think that what they learned in college or in the few
years thereafter is all that there is to be learned in the subject,
and after that they are practitioners not having to learn anymore. Of
course especially in a period of fairly rapid evolution that is very
much the wrong attitude; but unfortunately it is shared by many.
I can give you there an example from my own experience where, when I
was still very green and naive, just after the war, I had worked on
the theory of hearing: how the inner ear works. As I had just come from
wartime radar, I was full of signal processing methods and sophistication
and receiver techniques and all that, and there I found myself discussion
the physiology of hearing in those terms. I thought it was very appropriate
because it is a very fine scientific instrument that we were discussing,
the inner ear. But I had to address myself to an audience of otologists
- the doctors and medical people who deal with hearing - the only ones
who were doing any kind of research in this field. The mismatch was
obvious; it was completely hopeless. There was no common language, and
of course the medical profession just would not learn what it would
take to understand the subject. On the other hand, they sure made their
judgments about the matter, without having any basis at all.
So it just essentially forced me out of the field. The theory of hearing
which I proposed then involved an active - not a passive - receiver,
one in which positive feedback, not just passive detection is involved.
We now have very clear evidence, after these 36 years, that indeed an
active receiver is at work, but we still have not got a receptive group
of physiologists who deal in this field (note 1.) The medical profession
still hasn't a clue as to why 15 kilocycles should be coming out of
somebody's ears. Thirty-six years is not yet enough to get that learning
into the profession.
A motivation which is in a way more serious and more avoidable than
the nonlearning one, a motivation that hones out new ideas, is what
I brutally call the "herd" instinct. It is an instinct which
humans have. It presumably dates back to tribal society. I am sure it
has great value in sociological behavior in one way or another, but
I think on the whole the "herd instinct" has been a disaster
in science. In science what we generally want is diversity - many different
avenues need to be pursued. When people pursue the same avenue all together,
they tend to shut out the other avenues, and they are not always on
the right ones.
If a large proportion of the scientific community in one field is guided
by the herd instinct, then they cannot adopt another viewpoint since
they cannot imagine that the whole herd will swing around at the same
time. It is merely the logistics of the situation. Even if everybody
were willing to change course, nobody individually will be sure that
he will not be outside the herd when he does so. Perhaps if they could
do it as neatly as a flock of starlings, they would. So this inertia-producing
effect is a very serious one.
It is not just the herd instinct in the individuals that you have to
worry about, but you have to worry about how it is augmented by the
way in which science is handled. If support from peers, if moral and
financial consequences are at stake, then on the whole staying with
the herd is the successful policy for the individual who is depending
on these, but it is not the successful policy for the pursuit of science.
Staying with the herd to many people also has an advantage that they
would not run the risk of exposing their ignorance. If one departs from
the herd, then one will be asked, one will be charged to explain why
one has departed from the herd. One has to be able to offer the detailed
justifications, and one's understanding of the subject will be criticized.
If one stays with the herd, then mostly there is no such charge. "Yes,
I believe that because doesn't everybody else believe that?" That
is enough justification. It isn't to me, but it is to very many other
people. The sheep in the interior of the herd are well protected from
the bite in the ankle by the sheep dog.
It is this tendency for herd behavior that is greatly aggravated by
the support structure of science in which we believe nowadays. I will
read out just one passage here to show that other people than myself
have recognized the herd problems: David Michland writes in the REVIEWS
OF ASTRONOMY:
I
sometimes wonder if the much encouraged and proclaimed interaction among
western astronomers leads to a form of mental herd behavior which, if
it does not actually put a clamp upon free thinking, insidiously applies
the pressure to follow the fashion. This makes the writings of our Soviet
colleagues who have partly developed ideas in comparative isolation
all the more valuable.
Yes, I have wondered whether one should in fact pursue subjects with
a big wall between two groups that are working in the same field, so
that they absolutely cannot communicate, and see a few years later whether
they come even approximately to the same conclusion. It would then give
some perspective of how much the herd behavior may have been hurting.
But we don't have that. Even with our Soviet colleagues, unfortunately,
we have too much contact to have a display of real independence, to
see where it would have led.
This
question of how the support of science - and I don't mean only the financial
support but also the journals, the judgment of referees, the invitations
to conferences, acknowledgments of every kind - how that interacts with
the question of herd behavior, is what I will now discuss.
It is important to recognize how strong this interaction really is.
Suppose that you have a subject in which there is no clear-cut decision
to be made between a variety of opinions and therefore no clear-cut
decision to be made in which direction you should put money or which
direction you should favor for publications, and so on. No doubt opinions
would need a multidimensional space to be presented, but I will at the
moment just represent them in a one-dimensional situation.
Suppose you have some curve between the extreme of this opinion and
the extreme of that opinion. You have some indefinite, statistically
quite insignificant distribution of opinions. Now in that situation,
suppose that the refereeing procedure has to decide where to put money
in research, which papers to publish, and so on. What would happen?
Well, people would say, "We can't really tell, but surely we shouldn't
take anybody who is out here. Slightly more people believe in this position
than in any other, so we will select our speakers at the next conference
from this position on the opinion curve, and we will judge to whom to
give research funds," because the referees themselves will of course
be included in great numbers in some such curve. "We will select
some region there to supply the funds."
And so, a year later what will have happened? You will have combed out
some of the people who were out there, and you will have put more people
into this region. Each round of decision making has the consequence
of essentially taking the initial curve and multiplying it by itself.
Now we understand the mathematical consequence of taking a shallow curve
and multiplying it by itself a large number of times. What happens?
In the mathematical limit it becomes a delta function at the value of
the initial peak. What does that mean? If you go for long enough, you
will have created the appearance of unanimity. It will look as if you
have solved the problem because all agree, and of course you have got
absolutely nothing. If no new fact has come to light and the subject
has gone on for long enough, - this is what happens. And it does happen!
I am presenting it in its clearest form, and it is by no means a joke.
If many years go by in a field in which no significant new facts come
to light, the field sharpens up the opinions and gives the appearance
that the problem is solved.
I know this very well in one field, which is that of petroleum derivation,
where the case has been argued since the 1880's. At the present time
most people would say the problem is completely solved, though there
is absolutely nothing in the factual situation that would indicate a
solution. It is also very clear there that the holding-in that has taken
place has been an absolute disaster to research. It is now virtually
impossible to do any research outside the widely accepted position.
If a young man with no scientific standing were to attempt this, however
brilliant he might be, the wouldn't have a hope.
I believe that our present way of conducting science is deeply afflicted
by this tendency. The peer review system, which we regard as the only
fair way we know of to distribute money (I don't think it is, but it
is generally thought to be) is an absolute disaster. It is a completely
unstable method. It is completely prone to this tendency; there is no
getting out of it. The more reviews you require for a proposal - now
the NSF requires seven reviewers for a proposal - the more you require,
the more certain it is that you will follow the statistical tendency
dictated by this principle. If you had noise in the situation, it would
be much better. There used to be in the United States many different
agencies, and there was perhaps an odd-ball over here who gave out some
money for one agency, and a funny fellow over there for another. This
was a noisy situation, and it was not driving quite as hard towards
unanimity. But now we have it all streamlined and know exactly to whom
we have to go for a particular subject and, of course, it is an absolute
disaster.
Why is it thought that the peer review system would work for science?
How about trying to make a peer review system work for other forms of
endeavor? Suppose we had a national foundation for the arts, and every
painter had to apply to it to get his canvas and his brushes and his
paints. How do you suppose that would work? I can imagine some of the
consequences, but better than that, we can look them up in historical
examples. If you want to read such, in the book The Experts Speak, you
can do that. There is a long list of them that you can read - it makes
marvelous reading.
Eduard Manet wrote to his colleague Claude Monet, of Renoir: "He
has no talent at all, that boy. Tell him to give up painting."
"Rembrandt was regarded as not comparable with an extraordinarily
gifted artist, Mr. Ripingill."
William Blake spoke of Titian and the Venetians as "such idiots
are not artists."
Degas regarded Toulouse-Lautrec" as merely a painter of a period
of no consequence." One wonders how art would have fared in a peer
review system.
Or would it be different in music? We can read what was said of Beethoven's
compositions by musicians of his time:
"An orgy of vulgar noises" was the verdict of Beethoven's
Fifth Symphony by Mr. Spore, a German violinist and composer.
On Tchaikovsky's appreciation of Brahms, "I played over the music
of that scoundrel Brahms. What a giftless bastard. It annoys me that
this jumping, inflated mediocrity is hailed as a genius." But one
could go on almost endlessly with such quotations. Music would not have
fared any better.
So we see that the herd instinct is a tendency in the human makeup,
which is itself a severe handicap for science. Instead of combating
it as best we can, we have arranged a method of nurturing science which
actually strengthens it enormously - makes it virtually impossible to
depart from the herd and continue to have support, continue to have
a chance of publication, continue to have all the advantages that one
requires to work in a field.
If in a subject there was initially a diversity of opinions, the review
system will assure a very short life for that condition, and soon the
field will be closed to all but those who are in the center.
Once a herd is established, by whatever historical evolution this has
come about, it obtains such firm control that it is extremely difficult
to do anything about it. And even if it were appreciated that that is
the situation, one just doesn't know how to interfere. Where then is
the right to free speech if every journal has to send each article out
to a number of people to review, and the bulk of the people are with
the herd? Usually with just one-third of the reviewers very negative,
the paper does not get published.
So there is no free speech in the sense that you cannot publish diverse
viewpoints. There is also no free speech at conferences because the
same is true there. Would all those who have a divergent opinion be
able to organize their own conference? Very rarely. We (note: meaning
the SSE) represent perhaps an example here showing that it is possible,
but it is pretty rare that one can raise funds to run conferences. Essentially
once the herd is established, it will interfere in any one of the activities
that one would need to further that science.
Would the Dean of a university be willing to promote somebody to tenure
who was outside the pack? He can't, because he has to send out letters
to the leading persons in the field - he may inquire from 20 people
before he gets permission to appoint somebody to tenure - and how can
he get that when the pack is running in another direction than this
person? It is absolutely hopeless! So you establish the situation more
and more.
Once a herd has been established in a subject, it can only be broken
by the most crass confrontation with opposing evidence. There is no
gentle way that I have ever seen in the history of science where a herd
once established has been broken up.
In many subjects such clear evidence is very hard to come by. In the
complex subjects, especially I always think of the earth sciences in
this respect, there are always different ways of interpreting any one
fact; so many complicated things have taken place that any one fact
can have three or four interpretations and the crass confrontation is
very rare.
So then when you have a herd, all the money that you spent on it may
be wasted, or worse than that, it may actually serve to cement further
the bad situation. So it is very likely that money is often spent in
science in a way that is absolutely detrimental to that science.
What does the refereeing procedure really look like? How does it really
go on? If, for example, an application was made in the early 60's or
late 50's suggesting that the person wanted to investigate the possibility
that continents are moving around a little, it would have been ruled
out absolutely instantly without questions. That was crack- pot stuff,
and had long been thought dead. Wegener, of course, was an absolute
crack-pot, and everybody knew that and you wouldn't have any chance.
Six years later you could not get a paper published that doubted continental
drift. The herd had swung around - but it was still a firm and arrogant
herd.
Shortly after the discovery of pulsars I wished to present an interpretation
of what pulsars were, at this first pulsar conference - namely that
they were rotating neutron stars. The chief organizer of this conference
said to me, "Tommy, if I allow for that crazy an interpretation,
there is no limit to what I would have to allow." I was not allowed
5 minutes of floor time, although I in fact spoke from the floor. A
few months later, this same organizer started a paper with the sentence,
"It is now generally considered that pulsars are rotating neutron
stars."
I will tell you about a recent application to the Department of Energy
by a colleague of mine and myself for some money to investigate the
chemistry of hydrocarbons at high pressures and high temperatures in
the conditions in which they might be at some depth in the earth. We
had the referee's reports because you are allowed to get them, but not
signed. We got one voluntarily from one of the referees, so we know
who he was. He wrote, "This proposal must be funded. In science
every research project is a risk, but here the risk is negligible because
even if the hypothesis is not correct, this research proposal will contribute
strongly to fundamental science in petroleum engineering, the thermodynamics
of fluids, and geochemistry. If the hypothesis is correct, the Department
of Energy will have hit the jackpot beyond its wildest imagination."
And he continued with the detailed questionnaire with top marks in every
part: the competence of the proposer, the institution, the test, the
facilities, and all that. He gave it top marks on every point.
There was a second referee who also gave it top marks for all the questions
that are posed on the form. But then the last question is: "Should
this proposal be funded?" and he wrote, "No." And then
there was just a single word after that where it said "If no, why
not?" And he wrote down, "Misguided." It was not funded
despite the fact that most of the referees in fact gave it very high
marks, due to the "misguided," and also similar words were
used by two or three other referees. No reason given; just "don't
touch it."
It wasn't the only such that I have submitted over the years now, and
they have all been turned down both at NSF and DOE. It is absolutely
hopeless to get any money in contravention of the opinions that are
so firmly established in the petroleum business now.
That brings me to another problem. If in a subject you have a large
number of people because it has economic applications, that immediately
aggravates the problem. And , of course, in petroleum related matters
there are a huge number of people involved at every step. This means
firstly that a lot of mediocrity is brought into the field and overpowers
the field by sheer numbers; and it also means that much more commitment
to a particular viewpoint has been made by many people. Do you suppose
that the petroleum geologist who has been advising Exxon to drill for
hundreds of millions of dollars for maybe 30 years, will go to his bosses
at Exxon and say, "I am sorry, Sir, but I have been wrong all those
years. We have been finding the petroleum, but if we had searched for
it in another way, we would have found 10 times as much." It is
very unlikely that they will do that. In fact, even if his methods and
his understanding were completely, clearly wrong - even if you had the
crassest confrontation in this case - I don't think that it would be
acknowledged. A very small proportion of people would have that stature
that they would turn around and say, "All my life I have taught
or struggled with these problems on the wrong lines, and now I understand
the right thing." So, in this case, the herd is so firmly established
that one cannot think of converting it. A quotation from Tolstoy comes
to mind:
I
know that most men, including those at ease with problems of the greatest
complexity, can seldom accept even the simplest and most obvious truth,
if it be such as would obliged them to admit the falsity of conclusions
which they have delighted in explaining to colleagues, which they have
proudly taught to others, and which they have woven, thread by thread,
into the fabric of their lives.
Another area where it is particularly bad is in the planetary sciences
where NASA made great mistakes in the way in which they set up the situation.
NASA made the grave mistake not only of working with a peer review system,
but one where some of the peers (in fact very influential ones) were
the in-house people doing the same line of work. This established a
community of planetary scientists now which was completely selected
by the leading members of the herd, which was very firmly controlled,
and after quite a short time, the slightest departure from the herd
was absolutely cut down. Money was not there for anybody who had a slightly
diverging viewpoint. The conferences ignored him, and so on. It became
completely impossible to do any independent work. For all the money
that has been spent, the planetary program will one day be seen to have
been extraordinarily poor. The pictures are fine and some of the facts
that have been obtained from the planetary exploration with spacecraft
- those will stand but not much else.
So
yes, it is possible to make what is a bad tendency in humans in the
first place (for science at least a bad tendency,) that much worse with
a lack of understanding of how the inward looking effect can be controlled
or at least how it should not be augmented by the method of nurturing
of science.
You may think that what I am saying is that the support for science
poses this intrinsic problem, and that if you want to be fair you have
to go for an unstable system which doesn't work. At first it looks like
that. So should you go for something that's fair - makes people reasonably
happy - but that doesn't work? Or should you go for something that is
not so obviously regarded as fair but does work? It is a difficult decision
to make, but you know there is nothing that says that things that are
fair must also be the things that work. The world is just not so benign
to us. Life is not that easy.
Is there another way of doing it? I suppose that the best that I can
think of is roughly on the lines of what my friend, Arthur Katrowitz
proposed at least for major decisions: The "science court"
idea is the best one. Where a lot is at stake, where a subject has been
driven into an alley, one must set up a science court where the different
viewpoints would be heard, would be argued by the protagonists of each
one, with carefully prepared work. The different viewpoints could be
judge, not by others working in that same field, which would merely
take you back to the herd, but would be judged by a group of very knowledgeable
and very competent scientists distributed over other fields, but with
enough general competence to be able to listen and understand the detailed
arguments of the field in question. I would be much happier to have
subjects surveyed every now and again by a jury of that kind. It has
to be a scientific jury because it would have to understand detailed
scientific arguments, but they do not have to be -and should not be
- from the field in which the decision is to be made.
That is the avenue which I would advise the NSF and such organizations
to pick at this time. I would say that in every field they should set
up such a science court to hear all the different opinions on a reasonably
regular basis. It is true that you cannot do it for every application
that comes along, but it is true that you could do it sufficiently often
for major decisions to break, or at least spoil somewhat, the herd system.
As it is at the moment, the situation seems not to be understood at
all. I have discussed the herd problem with many people in the funding
agencies, and found no understanding of that problem at all.
I could give you many more examples from my own life of the difficulties
of getting subjects funded. At the present time I am struggling with
the oil and gas business, and after being turned down very firmly by
DOE and NSF, I finally was able to get money from he gas industry itself
to do research which is in good progress now. In this area, which is
one of the worst because no really significant facts have come to light
and everything has been interpreted time and again in the time-honored
fashion, and everyone believes they know in detail now how oil and gas
come to be where they are. And the fact that we find that oil and gas
exist on the other planetary bodies, obviously not due to biology, is
completely ignored. They say there was no oil or gas here, and all that
happened on the Earth was something that was completely specific to
Earth. Of course, it is a peculiar attitude, but that is one that is
widely accepted.
There is one more point I should make. When in a subject a general attitude
or a viewpoint has become established, then it is very easy to obtain
funds to do work in that subject on the bases of what I call "shoehorn
science." I think you will understand what I mean by that. If you
make your proposal which says: "I will demonstrate how this fact
and that fact, that apparently are difficult to see in the accepted
framework, can be figured into that framework," they are all delighted
to give you money. And by the time that has gone on for a long time,
so much work of the shoehorn kind has been diligently done to force
the facts into the pattern that is preordained, that it then looks to
many people as if it all was firmly established. What happens is that
they build a superstructure on what may be no foundation - if I may
invent a "Confucius say" sort of proverb, "Never judge
the strength of foundation by size of building."
In the field of petroleum geology that is really what has happened.
The moment you dare to look a the foundation, you are a scoundrel. I
have made people absolutely wild, shaking their fists at me, when I
proposed in my talks that there was some uncertainty about the origin
of petroleum. One fellow actually wrote a paper that got published,
that there must be life on Jupiter because hydrocarbons have been seen
on Jupiter.
That is my sad story. I believe that we could do something about it,
that we could propose that this kind of a situation be understood in
high quarters - that we could try and have something in the nature of
science courts established, or at any rate some review by independent
persons and not by the herd; but as it is at the moment, I feel that
we are dealing with a large proportion of science funding very firmly
in the wrong hands, and much of it is therefore counterproductive.
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